166 ' [September, 



thorace transverso, lateribus et angulia valde rotundatis subtiliter punctulato, 

 rufo, vitta lata nigra notato, elytris vix rugosis. Long. -lO. 



Pennsylvania. Very similar to A. otiosus, but the thorax, besides being 

 finely punctulate, has the posterior angles more broadly margined. 



5. A. flavilabris. Malachius Jlavilabris Say, Journ. Ac. Nat. Sc. 5, 

 169. Mai. ccendeus Randall, Bost. Journ. Nat. Hist. 2, 16. 



One specimen, Vermont. Prof. C. B. Adams. 



6. A. circumscriptus Er. Entom. 107. Malachius ciratmscriptus Say, 

 Journ. Ac. Nat. Sc. 3, 185. 



SoutLern States, not rare. 



7. A ci n c tu s , testaceus, supra niger, subtiliter cinereo-pubescens, parce 

 nigro-pilosellus, ore thoracis margine tenui, elytrorum basi margineque omni 

 flaxis, postpectore nigr. Long. -12. 



Colorado River, California. The antennae are piceous, with the base pale; 

 the thorax is transverse aud rounded on the sides as in the other species. The 

 pygidium is black, margined with testaceous; the abdomen has two rows of 

 piceous spots, the posterior tibiae are piceous. 



8. A. difficilis, niger, ore flavo, thorace lateribus tenuiter 3avi3, elytris 

 margine suturali et externo usque ad medium, apiceque flavis, pedibus basi 

 liavis. Long. -13. 



Colorado River. This species is so similar to the last, in every respect, 

 except color, that I hesitate to consider it distinct; the pubescence if it ever 

 had any has been entirely removed. Only a single specimen was found. 



9. A. lobatus, flavus, parce cinereo-pubescens, capite postice piceo' 

 thorace maculis 3 nigris confiuentibus notato, scutello nigro, elytris nigris 

 margine omni, basi suturaque late flavis, subtus niger pedibus abdominisque 

 apice flavis. Long. -07. 



A very pretty little species from the Colorado River, California. The 

 antennae are piceous, with the under part of the basal joints pale. A variety 

 has the head black, with only the clypeus pale ; the spots of the thorax so large 

 as to leave only a narrow yellow margin ; the sutural yellow margin of the 

 elytra not reaching the scutel, and the posterior feet dusky. It was found at 

 Vallecitas, on the western edge of the desert of the Colorado. 



10. A.terminalis Er. Entom. 108. Malacldiis terminalis Say, Journ. 

 Ac. Nat. Sc. 5, 71. 



Middle and Southern States. 



11. A. scincetus Er. Entom. 109. Malachius scinceius Say, Journ. 

 Ac. Nat. Sc. 5, 170. 



Southern States. Inasmuch as Erichson has adopted this specific name, I 

 do not venture to change it. I fear, however, that the German philosopher has 

 been as much at a loss as myself to give any meaning to it. It certainly can- 

 not be considered as a ' vox eu[honia,' such as are frequently invented by those 

 who rejoice in a limited amount of classic lore. The name given by Dejean 

 {Malackms lividus) is certainly infinitely better. 



This species varies in the color of the thorax, which is sometimes entirely 

 black ; usually it is yellow with a broad black vitta. 



12. A. granularis Er. Entom. 112. 

 South Carolina, Dr. Zimmerman. 



13. A. basalis, niger, glaber, nitidus, clypeo pedibusque flavis, thorace 

 subtilissime punctulato, basi, flavo-marginato, elytris postice latioribus, vix 

 rugosis. Long. 06. 



One specimen, Colorado Jliver, California. 



14. A. m e 1 a n o p t e r u s Er. Entom. 1 1 0. 

 This species is unknown to me. 



